Frankfurt 2014 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 12: Schwerionenkollisionen und QCD Phasen

HK 12.8: Vortrag

Montag, 17. März 2014, 18:30–18:45, HZ 6

Neutral Pion Measurement with the ALICE EMCal — •Baldo Sahlmüller for the ALICE collaboration — Institut für Kernphysik, Goethe-Universität Frankfurt

The quark-gluon plasma produced in heavy-ion collisions at the LHC can be studied via transverse momentum distributions of identified hadrons that are produced through different mechanisms in these collisions. The neutral pion offers a complimentary measurement to the measurement of charged hadrons with the ALICE tracking system, since it can be measured in calorimeters such as the ALICE EMCal via its two-photon-decay. The measurement in p-p collisions is a necessary baseline for interpreting the heavy-ion results. Furthermore, the π⁰ can be regarded as a standard candle in the calibration of calorimeters in heavy-ion collisions. Hence, understanding the π⁰ measurement is an important test for the detector.

We will present the status and first results of ongoing π⁰ analyses in the ALICE p-p data with the EMCal and compare them with complimentary measurements with the ALICE PHOS and the ALICE tracking system. We will focus on technical aspects of the analysis.

Supported by BMBF and the Helmholtz Association.